Cleaned up zsh setup

.config/zsh/bd.zsh

@@ -0,0 +1,88 @@
+# shellcheck shell=bash
+bd () {
+  (($#<1)) && {
+    printf -- 'usage: %s <name-of-any-parent-directory>\n' "${0}"
+    printf -- '       %s <number-of-folders>\n' "${0}"
+
+    return 1
+  } >&2
+
+  local requestedDestination="${1}"
+  local -a parents=(${(ps:/:)"${PWD}"})
+  local numParents
+  local dest
+  local i
+  local parent
+
+  # prepend root to the parents array
+  parents=('/' "${parents[@]}")
+
+  # Remove the current directory since it isn't a parent
+  shift -p parents
+
+  # Get the number of parent directories
+  numParents="$(( ${#parents[@]}))"
+
+  # Build dest and 'cd' to it by looping over the parents array in reverse
+  dest='./'
+  for i in $(seq "${numParents}" -1 1); do
+    parent="${parents[${i}]}"
+    dest+='../'
+
+    if [[ "${requestedDestination}" == "${parent}" ]]; then
+      cd $dest
+
+      return $?
+    fi
+  done
+
+  # If the user provided an integer, go up as many times as asked
+  dest='./'
+  if [[ "${requestedDestination}" == <-> ]]; then
+    if [[ "${requestedDestination}" -gt "${numParents}" ]]; then
+      printf -- '%s: Error: Can not go up %s times (not enough parent directories)\n' "${0}" "${requestedDestination}"
+      return 1
+    fi
+
+    for i in {1.."${requestedDestination}"}; do
+      dest+='../'
+    done
+
+    cd "${dest}"
+
+    return $?
+  fi
+
+  # If the above methods fail
+  printf -- '%s: Error: No parent directory named "%s"\n' "${0}" "${requestedDestination}"
+  return 1
+}
+
+_bd () {
+  # Get parents (in reverse order)
+  local localMatcherList
+  local -a parents=(${(ps:/:)"${PWD}"})
+  local numParents
+  local i
+  local -a parentsReverse
+
+  zstyle -s ':completion:*' 'matcher-list' 'localMatcherList'
+
+  # prepend root to the parents array
+  parents=('/' "${parents[@]}")
+
+  # Remove the current directory since it isn't a parent
+  shift -p parents
+
+  # Get the number of parent directories
+  numParents="$(( ${#parents[@]}))"
+
+  parentsReverse=()
+  for i in $(seq "${numParents}" -1 1); do
+    parentsReverse+=("${parents[${i}]}")
+  done
+
+  compadd -V 'Parent directories' -M "${localMatcherList}" "$@" -- "${parentsReverse[@]}"
+}
+
+compdef _bd bd